Two new species of <i>Nemesia</i> (Scrophulariaceae) from southern Africa

Two new annual species of Nemesia Vent, are described from southern Africa. N. williamsonii is characterized by bright orange flowers with an inflated yellow palate. It differs from the related N. maxii Hiern by having a spur that projects backwards, not downwards, and bracts that are lanceolate wit...

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Main Author: K. E. Steiner
Format: Article
Language:English
Published: South African National Biodiversity Institut 2006-08-01
Series:Bothalia: African Biodiversity & Conservation
Subjects:
Online Access:https://abcjournal.org/index.php/abc/article/view/330
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author K. E. Steiner
author_facet K. E. Steiner
author_sort K. E. Steiner
collection DOAJ
description Two new annual species of Nemesia Vent, are described from southern Africa. N. williamsonii is characterized by bright orange flowers with an inflated yellow palate. It differs from the related N. maxii Hiern by having a spur that projects backwards, not downwards, and bracts that are lanceolate with a truncate base, not triangular or cordate. It is unusual for the genus in having dimorphic seeds.  N. williamsonii occurs almost exclusively in the Richtersveld. but has been collected in a few localities across the Orange River in southern Namibia. N. hemiptera is a delicate, wiry-stemmed annual with small white flowers. The flowers are characterized by a tiny nipple-like spur and a seed that is winged on onlv one side. N. hemiptera isendemic to the Kamiesberg from near Garies to Kamieskroon.
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spelling doaj.art-5064b538be064105b624438b31e2342e2022-12-21T21:11:20ZengSouth African National Biodiversity InstitutBothalia: African Biodiversity & Conservation0006-82412311-92842006-08-01361394410.4102/abc.v36i1.330267Two new species of <i>Nemesia</i> (Scrophulariaceae) from southern AfricaK. E. Steiner0Department of Botany, California Academy of SciencesTwo new annual species of Nemesia Vent, are described from southern Africa. N. williamsonii is characterized by bright orange flowers with an inflated yellow palate. It differs from the related N. maxii Hiern by having a spur that projects backwards, not downwards, and bracts that are lanceolate with a truncate base, not triangular or cordate. It is unusual for the genus in having dimorphic seeds.  N. williamsonii occurs almost exclusively in the Richtersveld. but has been collected in a few localities across the Orange River in southern Namibia. N. hemiptera is a delicate, wiry-stemmed annual with small white flowers. The flowers are characterized by a tiny nipple-like spur and a seed that is winged on onlv one side. N. hemiptera isendemic to the Kamiesberg from near Garies to Kamieskroon.https://abcjournal.org/index.php/abc/article/view/330Kamiesberg, Namibia, <i>Nemesia</i> Vent., new species, Richtersveld, Scrophulariaceae. seed dimorphism, southern Africa
spellingShingle K. E. Steiner
Two new species of <i>Nemesia</i> (Scrophulariaceae) from southern Africa
Bothalia: African Biodiversity & Conservation
Kamiesberg, Namibia, <i>Nemesia</i> Vent., new species, Richtersveld, Scrophulariaceae. seed dimorphism, southern Africa
title Two new species of <i>Nemesia</i> (Scrophulariaceae) from southern Africa
title_full Two new species of <i>Nemesia</i> (Scrophulariaceae) from southern Africa
title_fullStr Two new species of <i>Nemesia</i> (Scrophulariaceae) from southern Africa
title_full_unstemmed Two new species of <i>Nemesia</i> (Scrophulariaceae) from southern Africa
title_short Two new species of <i>Nemesia</i> (Scrophulariaceae) from southern Africa
title_sort two new species of i nemesia i scrophulariaceae from southern africa
topic Kamiesberg, Namibia, <i>Nemesia</i> Vent., new species, Richtersveld, Scrophulariaceae. seed dimorphism, southern Africa
url https://abcjournal.org/index.php/abc/article/view/330
work_keys_str_mv AT kesteiner twonewspeciesofinemesiaiscrophulariaceaefromsouthernafrica